In the first above-mentioned episode, this card appears in a flashback Kite has when he states that his last duel with Mizar ended before he could fully see "Neo Galaxy-Eyes Tachyon Dragon".
This card is now fully shown, but its effect isn't.
In episode 106, the spirits of this card and "Neo Galaxy-Eyes Photon Dragon" resonate with each other when Mizar decides to Duel Kite and finally settles things with him. This didn't come due to the energy resonating with both monsters made the Number ruins crumble apart.
In episode 126, this card appears behind Mizar as Trey and Quinton prepare to Duel him near the end of the episode.
In episode 127, this card appears behind Mizar when he claims that he will crush Trey and Quinton's "Numbers" with this card.
This card also appears in Mizar's mind when he realizes that Trey and Quinton's plan from the very beginning was to seal Mizar off from activating "Rank-Up-Magic - The Seventh One" before he could use it to summon his "Chaos Number".
In episode 128, Mizar uses this card during his Duel against Trey and Quinton. He Xyz Summons this card via "Rank-Up-Magic - The Seventh One", which targeted "Number 107: Galaxy-Eyes Tachyon Dragon". Quinton then activates "Monopole Chain" to prevent this card from attacking and then subsequently activates "Atlandis Invitation" to destroy this card and inflict its ATK as damage to Mizar during the End Phase if it does not attack this turn. Mizar then activates this card's second effect to negate the effects of all other face-up cards on the field and return all cards activated this turn to the same position they were in at the start of the turn. Mizar also explains that because he activated this card's second effect, only he can choose which face-down cards can be activated. Mizar then activates this card's final effect to Tribute "Heliosphere Dragon" and "Parsec, the Interstellar Dragon" and allow this card to attack three times this turn. This card then attacks and destroys Trey's "Chaos Number 6: Chronomaly Chaos Atlandis" and Quinton's "Chaos Number 9: Chaos Dyson Sphere". This card then attacks directly and wins Mizar the Duel.
In episode 129, this card appears in a flashback Yuma Tsukumo has while he is saddened over the fact that Quinton and Trey sacrificed themselves for him and Kite.
In episode 133, this card appears in a flashback Mizar has when he reveals to Kite that Quinton and Trey sacrificed themselves in order to buy Yuma and Kite time for their journeys.
In episode 134, Mizar uses this card during his Duel against Kite. He Xyz Summons this card via "Rank-Up-Magic - The Seventh One", which targeted "Number 107: Galaxy-Eyes Tachyon Dragon". Mizar then activates this card's second effect to negate the effects of all other face-up cards on the field and return all cards activated this turn to the same position they were in at the start of the turn. This card then attacks "Galaxy-Eyes Photon Dragon", but Kite activates the effect of "Galaxy Tyranno" to overlay "Galaxy-Eyes Photon Dragon" and "Galaxy Tyranno" while the latter is treated as two monsters in order to Xyz Summon "Neo Galaxy-Eyes Photon Dragon". Due to the second effect of "Galaxy Tyranno", the effects of "Neo Galaxy-Eyes Photon Dragon" are negated but it can't be destroyed by battle. A replay occurs and this card attacks "Neo Galaxy-Eyes Photon Dragon". Mizar then activates "Galaxy Shockwave" to increase this card's ATK by 1500 and render "Neo Galaxy-Eyes Photon Dragon" unaffected by card effects. This card then destroys "Neo Galaxy-Eyes Photon Dragon". At the end of the Damage Step, the effect of "Galaxy Shockwave" expires. Later Kite activates the second effect of "Number 62: Galaxy-Eyes Prime Photon Dragon" to increase the Ranks of all monsters on the field by one. "Galaxy-Eyes Prime Photon Dragon" then attacks this card and Kite activates the third effect of "Galaxy-Eyes Prime Photon Dragon" to increase its ATK by 3800 (the increase is equal to the combined Ranks of all monsters on the field times 200). "Galaxy-Eyes Prime Photon Dragon" then destroys this card. Mizar then activates "Tachyon Chaos Hole" to banish all cards Kite controls. Later Mizar activates the second effect of "Tachyon Chaos Hole" to revive this card. This card then attacks directly, but Kite activates "Double Dragon Descent" to Special Summon "Number 46: Dragluon" from his Extra Deck with the same ATK as this card. A replay occurs and this card attacks "Dragluon", destroying both monsters in a Double KO. Mizar then activates "Galaxy Rebirth" to revive this card with its ATK halved. This card then attacks directly. In the next episode, Mizar activates "Tachyon Refresh" to banish this card and subsequently return it to the field. Mizar then equips this card with "Tachyon Cannon", which reduces this card's ATK by 500. This card then attacks and destroys Kite's set "Galaxy Mirror Sage". Kite then activates the Flip Effect of "Galaxy Mirror Sage" to increase his Life Points by 800 and reset "Galaxy Mirror Sage" from the Graveyard. Mizar then activates the second effect of "Tachyon Cannon" to halve this card's ATK and let it attack again. This card then attacks and destroys "Galaxy Mirror Sage", whose Flip Effect increases Kite's Life Points by 800 again. This card then attacks directly three times via "Tachyon Cannon" and "Tachyon Cannon" halves this card's ATK before each attack. Later Mizar activates "Tachyon Unit" to activate this card's second effect during Kite's turn and without using an Overlay Unit. This nullifies the effect of "Tachyon Cannon" and returns this card's ATK to its original value. Mizar intends for "Galaxy-Eyes Prime Photon Dragon" to return being banished, but it does not as the effect that banished it did not activate on the current turn. "Galaxy-Eyes Prime Photon Dragon" then attacks this card and the last effect of "Galaxy-Eyes Prime Photon Dragon" (which was also activated two turns ago) doubles its ATK (which is by the number of Overlay Units "Galaxy-Eyes Prime Photon Dragon" had when it was banished). "Galaxy-Eyes Prime Photon Dragon" then destroys this card, winning Kite the Duel.
In episode 138, Don Thousand absorbs this card along with every "Number" in Mizar's possession after he absorbs Mizar.
In the second above-mentioned episode, this card appears in a series of flashbacks Yuma has when he discovers that "CXyz Barian Hope" can use the effects of all "Chaos Over-Hundred Numbers" used by the Barians.
In the third above-mentioned episode, this card appears in a flashback Nash has when he explains the effect of "Rebirth of the Seven Emperors".